Printer&#39;s furniture.



N-O 747,794. ,PATENTED DE0.'z2,' 190s. s. STEPHENS.

PRINTERS FURNITURE.

' APPLICATION FILED AUG. 9, 1902.

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characters on the drawings representing like.

' UNITED STATES Patented December 22, 1903.

PATENT OFFICE.

SAMUEL STEPHENS, OF SOMERVILLE, MASSACHUSETTS, ASSIGNOR TO WIOKERSHAM QUOIN COMPANY, OF BOSTON,'MASSACHUSETTS, A

CORPORATION OF MAINE.

PRINTERSH FURNITURE.

SIPECIFICATION forming part of Letters Patent No. 747,794, dated December 22, 1903. Application filed August 9,1902. Se rialNo.118.998. (N model.)

To all whom it may concern:

Be it known that I, SAMUEL STEPHENS, a

citizen of the United States, residing at Som-- parts.

My invention in printers furniture aims particularly toimprove what are known ex tensible lock-ups, used for locking up a small form in a large chase, also for looking a.

chase in position upon the bed of the press.

The nature of myinvention will be best understood from a description of one embodiment thereof shown in the accompanying tion selected for illustration herein and shown in the drawings, a is a usual chase,containing a relatively small form'b, which is to be locked:

therein. In one direct-ion said form may be locked in usual manner by 'furniture-g-such, for inst-ance,as the block a and the quoin d, In the other direction, lengthwise the chase, said form is shown locked by an extensible lockup,illustrating myinvention. As here shown, said lock-up com prises the relatively movable members 6 f. The member 6 comprises a qnoin-like base e of suitable construction. such, for instance, as the well-known Wickersham quoin,r shown and described in United States Letters Patent No. 453,226, dated June 2, 1891, the same being operated by a key inserted at e and manipulated in usual manner. One of the faces of the member e is provided with a longitudinal channel or groove 6 to receive the member f, which is adapted to slide therein. One of the side walls of the groove e is channeled, as at e to receive the guiding-lug f on the member f.

1 acted upon by a spring e maintains the locking-pins in normal locking It is necessary to lock the said members e f firmly in desired position one relative to the other to insure permanency and stability of the lock-up. For this purpose I have provided the member f at one of its side faces with a series of recesses f preferably cylindrical, or other shape presenting parallel side walls. Cooperating with these recesses is one or more locking-pins e mounted for in-andout movement in long bearings in the memher 6 and-carried by ahead e having a T- shaped lug 6 which is engaged by the slotted end of the finger-lever e pivoted at e and The said spring engagement with corresponding recesses in the member 6, from which they may be released by depression of the finger-lever e These pins, as shown, lock against movement in both directions;

In use the lock-up is placed in position and with the finger-lever depressed its members are extended to obtain the closest approximate adjustment possible with the lockingpins and recesses described. Final adjustment and locking are then obtained by means of the qnoin-like base 0, which is expanded by use of the key at 6 Theengagement between the locking-pins'c and the recesses f is sureand reliable, and the-quoin-like base e furnishesa most efficient means for obtaining the final lock-up. Consequently there is no liability of accidental loosening.

Preferably the memberf has a transverse head f to obtain a better bearing on the wall A convenient construction is' invention and Without limiting myself to details, what I claim, and desire to secure by Letters Patent, is

1. An extensible lock-up device comprising the relatively sliding members, one provided with a series of recesses, the other with one or more simultaneously-operating locking devices to positively lock said member in all directions, the pivoted actuating-lever therefor, and other quoin-like adjusting means for the purpose described. 2. An extensible lock-up device comprising two members, one having sliding engagement With the other, means comprisingspringoperated pin on one member and recess on the other member to positively lock said members in all directions in approximate adjustment, and a quoin mounted upon the end of one of said members and constituting an extended base therefor.

In an extensible lock-up device, a plurality of relatively slidable members, a plurality of locking-recesses on one of said members, cooperating locking-pins on the other member and supplemental quoin -like adjusting means at one extremity of one of said members.

4. In an extensible lock-up device, a plurality of relatively longitudinally slidable members, a plurality of locking-recesses on one of said members, cooperating sliding locking-pins on the other member whereby the members are positively locked in all directions, and supplemental qnoin-likeadjusting means at one extremity of one of said members.

5. In an extensible lock-up device, a plurality of relatively slid-able members, one member provided with a groove within which the other member is adjustable, a plurality of locking-recesses in one of said members, a plurality of locking-pins on the other member, a spring-actuated lever for throwingsaid pins into and out of engagement with said recesses and supplementalquoin-like adjusting means on one extremity of one of said members.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

SAMUEL STEPHENS. Witnesses:

FREDERICK L. EMERY, EVERETT S. EMERY. 

